BS EN 50583-2:2016 BSI Standards Publication Photovoltaics in buildings Part 2: BIPV systems BS EN 50583-2:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 50583-2:2016 The UK participation in its preparation was entrusted to Technical Committee GEL/82, Photovoltaic Energy Systems A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 580 91292 ICS 27.160 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2016 Amendments/corrigenda issued since publication Date Text affected BS EN 50583-2:2016 EUROPEAN STANDARD EN 50583-2 NORME EUROPÉENNE EUROPÄISCHE NORM January 2016 ICS 27.160 English Version Photovoltaics in buildings - Part 2: BIPV systems Systèmes photovoltaïques dans la construction - Partie 2: Systèmes photovoltaïques incorporés au bâti Photovoltaik im Bauwesen - Teil 2: BIPV-Anlagen This European Standard was approved by CENELEC on 2015-10-12 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members Ref No EN 50583-2:2016 E BS EN 50583-2:2016 EN 50583-2:2016 (E) Contents Page European foreword Scope Normative references Terms and definitions 4.1 4.2 4.2.1 4.3 Requirements General BIPV Systems with modules containing glass pane(s) General BIPV Systems with modules not containing glass panes 15 Labelling 17 System documentation, commissioning tests and inspection 17 Annex A (informative) 18 A.1 Introduction 18 A.2 Scope 18 A.3 Terms and definitions 18 A.4 Symbols and units 18 A.5 Principle 19 A.6 Test specimen 19 A.6.1 Test specimen samples 19 A.6.2 Dimension of the test specimen 19 A.6.3 Number of sets of tests 20 A.6.4 Preparation of test specimen 20 A.7 Apparatus 20 A.7.1 General 20 A.7.2 Suction chamber 20 A.7.3 Fan system 21 A.7.4 Rain generation installation 21 A.7.5 Run-off water 22 A.7.6 Observation and measurement of leakage 22 A.8 Test procedure 22 A.8.1 General 22 A.8.2 Test conditions 23 A.9 Evaluation and expression of test results 27 A.10 Test report 27 Bibliography 29 BS EN 50583-2:2016 EN 50583-2:2016 (E) European foreword This document (EN 50583-2:2016) has been prepared by CLC/TC 82 "Solar photovoltaic energy systems" The following dates are fixed: • • latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with this document have to be withdrawn (dop) 2016-10-12 (dow) 2018-10-12 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights BS EN 50583-2:2016 EN 50583-2:2016 (E) Scope This document applies to photovoltaic systems that are integrated into buildings with the photovoltaic modules used as construction products It focuses on the properties of these photovoltaic systems relevant to essential building requirements as specified in the European Construction Product Regulation CPR 89/106/EEC, and the applicable electro-technical requirements as stated in the Low Voltage Directive 2006/95/EC / or CENELEC standards This document references international standards, technical reports and guidelines For some applications in addition national standards (or regulations) for building works may apply in individual countries, which are not explicitly referenced here The document is addressed to manufacturers, planners, system designers, installers, testing institutes and building authorities This document does not apply to concentrating or building-attached photovoltaic systems This document addresses requirements on the BIPV systems in the specific ways they are intended to be mounted but not the BIPV modules as construction products, which is the topic of EN 50583-1 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 410, Glass in building — Determination of luminous and solar characteristics of glazing EN 1027, Windows and doors — Watertightness — Test method EN 1990, Eurocode: Basis of structural design EN 1991 (all parts), Eurocode 1: Actions on structures EN 1993 (all parts), Eurocode 3: Design of steel structures EN 1995 (all parts), Eurocode 5: Design of timber structures EN 1999 (all parts), Eurocode 9: Design of aluminium structures EN 12179, Curtain walling — Resistance to wind load — Test method prEN 12488, Glass in buildings — Glazing recommendations — Assembly principles for vertical and sloping glazing EN 12519, Windows and pedestrian doors — Terminology EN 12600, Glass in building — Pendulum test — Impact test method and classification for flat glass EN 12758, Glass in building — Glazing and airborne sound insulation — Product descriptions and determination of properties EN 13022 (all parts), Glass in building — Structural sealant glazing EN 13116, Curtain walling — Resistance to wind load — Performance requirements EN 13119, Curtain walling —Terminology EN 13363-1, Solar protection devices combined with glazing — Calculation of solar and light transmittance — Part 1: Simplified method For the definition building-attached photovoltaic systems refer to 3.2 BS EN 50583-2:2016 EN 50583-2:2016 (E) EN 13363-2, Solar protection devices combined with glazing — Calculation of total solar energy transmittance and light transmittance — Part 2: Detailed calculation method EN 13501-2, Fire classification of construction products and building elements — Part 2: Classification using data from fire resistance tests, excluding ventilation services EN 13501-5, Fire classification of construction products and building elements — Part 5: Classification using data from external fire exposure to roofs tests EN 13830, Curtain walling — Product standard EN 13956, Flexible sheets for waterproofing — Plastic and rubber sheets for roof waterproofing — Definitions and characteristics EN 14351-1, Windows and doors — Product standard, performance characteristics — Part 1: Windows and external pedestrian doorsets without resistance to fire and/or smoke leakage characteristics EN 14500, Blinds and shutters — Thermal and visual comfort — Test and calculation methods EN 14782, Self-supporting metal sheet for roofing, external cladding and internal lining — Product specification and requirements EN 14783, Fully supported metal sheet and strip for roofing, external cladding and internal lining — Product specification and requirements EN 15804, Sustainability of construction works — Environmental product declarations — Core rules for the product category of construction products CEN/TR 15941, Sustainability of construction works — Environmental product declarations — Methodology for selection and use of generic data EN 15942, Sustainability of construction works — Environmental product declarations — Communication format business-to-business EN 15978, Sustainability of construction works — Assessment of environmental performance of buildings — Calculation method EN 16002, Flexible sheets for waterproofing — Determination of the resistance to wind load of mechanically fastened flexible sheets for roof waterproofing EN 50583-1, Photovoltaics in buildings – Part 1: BIPV modules HD 60364-7-712, Electrical installations of buildings — Part 7-712: Requirements for special installations or locations — Solar photovoltaic (PV) power supply systems (IEC 60364-7-712) CLC/TS 61836, Solar photovoltaic energy systems — Terms, definitions, symbols (IEC/TS 61836) EN 62446, Grid connected photovoltaic systems — Minimum requirements for system documentation, commissioning tests and inspection (IEC 62446) EN ISO 6946, Building components and building elements — Thermal resistance and thermal transmittance — — Calculation method (ISO 6946) EN ISO 12543-1, Glass in building — Laminated glass and laminated safety glass — Part 1: Definitions and description of component parts (ISO 12543-1) EN ISO 12543-2, Glass in building — Laminated glass and laminated safety glass — Part 2: Laminated safety glass (ISO 12543-2) EN ISO 12543-3, Glass in building — Laminated glass and laminated safety glass — Part 3: Laminated glass (ISO 12543-3) BS EN 50583-2:2016 EN 50583-2:2016 (E) EN ISO 12543-4, Glass in building — Laminated glass and laminated safety glass — Part 4: Test methods for durability (ISO 12543-4) EN ISO 12543-5, Glass in building — Laminated glass and laminated safety glass — Part 5: Dimensions and edge finish (ISO 12543-5) EN ISO 12543-6, Glass in building — Laminated glass and laminated safety glass — Part 6: Appearance (ISO 12543-6) prEN ISO 14439, Glass in building — Glazing requirements — Use of glazing blocks (ISO/DIS 14439) EN ISO 12631, Thermal performance of curtain walling — Calculation of thermal transmittance (ISO 12631) ETAG 002, Guideline for European Technical Approval for Structural Sealant Glazing Systems – SSGS N 0068/CEN-TC128-WG3-N0068 TR Renewable energy systems for roof structural connections Terms and definitions For the purposes of this document, the terms and definitions given in EN 1990, EN ISO 12543 (Parts to 6), EN 12519, EN 13119, EN 13956, EN 14782, EN 14783, EN 13022, EN 16002, CLC/TS 61836, and the following apply Annex-specific definitions are included in the annexes themselves NOTE Additional information are provided in the Low Voltage Directive 2006/95/EC, the Construction Product Regulation 305/2011 and the Electromagnetic Compatibility Directive ECD 2004/108/EC 3.1 Building-Integrated Photovoltaic system BIPV system photovoltaic systems are considered to be building-integrated, if the PV modules they utilize fulfil the criteria for BIPV modules as defined in EN 50583-1 and thus form a construction product providing a function as defined in the European Construction Product Regulation CPR 305/2011 3.2 Building Attached Photovoltaic system BAPV system photovoltaic systems are considered to be building attached, if the PV modules they utilize not fulfil the criteria for BIPV modules as defined in EN 50583-1 Note to entry: Further important information on this type of photovoltaic system on roofs is provided by the Technical Report by CEN/TC 128/WG3 - Solar energy systems for roofs: Requirements for structural connections to solar panels 4.1 Requirements General As BIPV systems contain electrical components, the systems are subject to the applicable electro-technical requirements as stated in the Low Voltage Directive 2006/95/EC / or CENELEC standards BIPV systems shall be designed such that they not contradict the requirements of HD 60364-7-712 for PV systems The essential requirements defined in the LVD 2006/95/EC are: Protection against hazards arising from the electrical equipment, Protection against hazards which may be caused by external influences on the electrical equipment As electrical systems, BIPV systems are subject to the applicable electro-technical requirements as stated in the Electromagnetic Compatibility Directive ECD 2004/108/EC / or CENELEC standards The essential requirements defined in the ECD 2004/108/EC are: BS EN 50583-2:2016 EN 50583-2:2016 (E) Protection requirements: Equipment shall be so designed and manufactured, having regard to the state of the art, as to ensure that: (a) the electromagnetic disturbance generated does not exceed the level above which radio and telecommunications equipment or other equipment cannot operate as intended; (b) it has a level of immunity to the electromagnetic disturbance to be expected in its intended use which allows it to operate without unacceptable degradation of its intended use Specific requirements for fixed installations: Installation and intended use of components A fixed installation shall be installed applying good engineering practices and respecting the information on the intended use of its components, with a view to meeting the protection requirements set out in Point Those good engineering practices shall be documented and the documentation shall be held by the person(s) responsible at the disposal of the relevant national authorities for inspection purposes for as long as the fixed installation is in operation As BIPV systems contain components that are used as construction products, these components are subject to the Essential Requirements as specified in the European Construction Product Regulation CPR 305/2011 The essential requirements defined in the CPR 305/2011 are: Mechanical resistance and stability; Safety in case of fire; Hygiene, health and the environment ; Safety and accessibility in use; Protection against noise; 10 Energy economy and heat retention; 11 Sustainable use of natural resources The specific requirements on BIPV modules, which arise from these general CPR requirements, are treated in EN 50583-1 The integration of photovoltaics into an existing construction product to create a BIPV module necessarily changes the properties with respect to the original construction product New evaluation of a BIPV system containing the BIPV module with respect to a basic requirement of the CPR is necessary only if an essential characteristic of the BIPV module needed to meet this basic requirement is changed with respect to the original construction product As construction products, BIPV modules and their mounting structure, frame and fastenings have to be designed to comply with the wind, snow and mechanical loads as well as other requirements set out in the Eurocodes EN 1990, EN 1991, EN 1993, EN 1995 and EN 1999 This standard distinguishes between BIPV systems with modules that contain at least one pane of glass and those that not In addition to naming the general requirements, this standard classifies BIPV systems with modules containing glass into five different categories (depending on the intended mounting type) Specific normative references are listed for each category As per Directive 2011/65/EU of the European parliament from 8th June 2011, photovoltaic modules have been exempted from the ROHS directive Note the findings of CEN/TC128 WG3 – N0068 – TR renewable energy systems for roof structural connections BS EN 50583-2:2016 EN 50583-2:2016 (E) 4.2 4.2.1 BIPV Systems with modules containing glass pane(s) General Additional clauses from EN 13022-1 or ETAG 002 apply to BIPV modules that are used as part of a structural sealant glazing system Table — General requirements for all BIPV systems with modules containing glass panes CPR Requirement Mechanical and stability Standards, guidelines, methods resistance Safety in case of fire test Comment prEN 12488 Basis of assembly rules for glazing EN 13501-2 Fire classification standards EN 13022-2 Only applicable for BIPV systems consisting of BIPV modules or PV insulating glass units to be bonded adhesively which are sold separately from the framework and installed under the responsibility of the designer and assembler National regulations may define restrictions or 4) additional requirements ETAG 002 Applicable for structural sealant glazing systems put on the market as a “kit” of components; specified by European Technical Approval or National Approval prEN ISO 14439 Applicable if contact of glass and frame cannot be excluded Hygiene, health and the environment Safety and accessibility in use Protection against noise EN 12758 Energy economy and heat retention Sustainable use of natural resources 4.2.2 EN 15804 CEN/TR 15941 EN 15942 EN 15978 Additional information is provided in the final Report of IEAPVPS Task 12 Mounting categories Additional requirements depend on the type of mounting This standard differentiates five categories - A to E - of mounting according to combinations of the following criteria: ) Structural sealant glazing systems (SSGS) or kits comprising PV modules are in the first consideration a matter of Technical Approvals which set out the requirements for the complete product to be fulfilled by the manufacturer In the second consideration, PV modules as glass products to be sold separately and installed into or onto a framework or into or onto the building using a structural glazing technique are specified in EN 13022-1 Meeting the requirements of this standard, they are suitable for use in SSGS as defined in ETAG 002 and EN 13022-2 BS EN 50583-2:2016 EN 50583-2:2016 (E) Annex A (informative) Resistance to wind-driven rain of BIPV roof coverings with discontinuously laid elements - Test method A.1 Introduction The test method characterises the degree of wind-driven and deluge rain penetration through a BIPV roof with regard to rain intensity, roof angle, wind speed and climatic zones The results indicate the boundary conditions for the use of a BIPV roof and provide an indication for selecting the appropriate layer underneath the buildingintegrated PV modules (e.g sarking membrane) The defined test method can be used for BIPV modules mounted as specifically defined in category A, 4.2.1 Parts of the prescribed test method are defined as in CEN/TR 15601:2012 A.2 Scope This test method describes a method to determine the resistance to wind-driven rain of a BIPV pitched roof system corresponding to category A, 4.2.1 The test method is applicable for a kit of discontinuously laid BIPV modules in combination with adjacent mounting-relevant fixtures, sealants, joints and connections to regular surrounding roofing/building components NOTE Valuable information concerning the permeability of discontinuously laid BIPV modules can be found in the Annex NB.A of NEN-EN1991-1-4/NB A.3 Terms and definitions For the purposes of Annex A, the following terms and definitions apply test specimen assembled array of roof-integrated PV modules as used for complete roof or roofing component replacement over which the rain penetration is to be observed or measured samples PV modules used for roof integration reference leakage rate leakage rate of (10 g/m )/5 min; being the duration of a single test step in the sub-test effective testing area minimum testing area of the specimen set of tests consisting of sub-tests B and D, (and optionally sub-test A and C), for an appropriate climate zone, roof pitch and laying specification A.4 Symbols and units For the purposes of Annex A, the following symbols and units apply 18 BS EN 50583-2:2016 EN 50583-2:2016 (E) Table A.1 – Symbols and units used in Annex A Symbol Quantity Unit f wind speed factor relating u and us - lu turbulence intensity % L simulated additional rafter length above the test specimen m Rh rainfall rate on a horizontal plane mm/h Rro run-off rate l/min Rt rainfall rate on the roof surface mm/h u wind speed approaching the roof m/s ut terminal velocity of rain drops m/s σg standard deviation of the turbulent fluctuations in the wind speed m/s ū mean wind speed approaching the roof m/s us wind speed over test specimen m/s W the effective width of the test specimen m α roof pitch degree° θ angle of incidence of rain degree° A.5 Principle A test specimen is fitted into the wind-driven rain apparatus, the external surface of the test specimen is exposed to wind and continuously sprayed with water, and run-off water is continuously applied at the top of the specimen At the same time an air pressure difference between the upper and lower surfaces of the test specimen is increased or decreased in specific steps Water leakage through the test specimen, which can occur at certain air pressure differences, is observed and/or measured A.6 Test specimen A.6.1 Test specimen samples Samples for the test specimen shall comply, where relevant, with the appropriate product standard in respect of the appropriate sampling plan, or, in absence of a standard sampling plan, shall be selected at random from a representative production lot A.6.2 Dimension of the test specimen The dimensions of the test specimen shall be as large as necessary to be representative of the intended use.The test specimen shall include at least one of every type of joint between the solar energy specimen and the surrounding roof surface (where appropriate) In some cases with large solar energy specimens, it might not be possible to test all of the joints simultaneously in the same test In such cases the testing shall be repeated to ensure that each joint is fully tested The minimum number of tests shall be one The test specimen shall include all representative joints, where this is not possible then additional tests will be required to test each joint separately 19 BS EN 50583-2:2016 EN 50583-2:2016 (E) The minimum dimensions of the test specimen shall be 1, m x 1,5 m or shall comprise a minimum of roof covering elements NOTE Depending on the system / product to be tested it may be necessary to seal the laps or joins of the adjacent elements, whereby these sealed elements are outside of the effective area of the test specimen When the testing of products with such a size that they exceed the dimensions of the test set-up, if possible, a reduction of the elements can be performed, however, in such a way that the mutual connections between the products (elements, the adapters and any other test elements) are representative continue A.6.3 Number of sets of tests The number of sets of tests shall be at least one A.6.4 Preparation of test specimen Construct the test specimen according to the roofing specification representative of its intended use (such as roof pitch, lap and the influence of fixing systems where appropriate) The test specimen may be built in a surrounding frame to facilitate transport and fitting to the opening of the driving rain test apparatus The joint between test specimen and surrounding frame shall be sealed to prevent water leakage during the test, without disturbance to the normal occurring gaps in the specimen If a frame is used, it shall be able to resist the pressures applied during the test without deflecting to an extent that would influence the test results The surround shall be prepared and installed so that any water penetration through the unsealed area of the test specimen is readily detectable The test specimen shall be conditioned to be surface dry before each test A.7 Apparatus A.7.1 General The test apparatus shall consist of: • a suction chamber sealed to the underside of the test specimen and connected to a suction fan, as specified in A.7.2; • a fan system to create wind on the outside of the test specimen, as specified in A.7.3; • an installation capable of generating rain on the outside of the specimen, as specified in A.7.4; • provisions for creating run-off water on the outside of the test specimen, as specified in A.7.5; • facility for observation and measurement of leakage as specified in A.7.6 A.7.2 Suction chamber The suction fan connected to the suction chamber shall be capable of creating a stable pressure difference, maintained for ± 10 sec, across the test specimen The pressure difference shall be measured to a maximum inaccuracy of % or 2,5 Pa, whichever is greater The height and shape of the suction chamber shall be sufficient to ensure uniform pressure conditions 20 BS EN 50583-2:2016 EN 50583-2:2016 (E) It shall be possible, when required, to seal the connection between the suction chamber and the suction fan (e.g by providing a valve which can be closed or opened) A water collector shall be provided, connected to the suction chamber, capable of recording the amount of leakage water during any pressure step in the test, to a maximum inaccuracy of % or g, whichever is greater The surfaces of the suction chamber shall allow leakage water to flow freely into the water collector A.7.3 Fan system The fan system shall be capable of generating wind in the direction of the eaves to the ridge The wind flow shall be horizontal or parallel to the surface of the inclined test specimen Calibrate the fan system for spatial variation of the wind speed, by taking measurements at not less than positions uniformly distributed over the effective testing area, at a height of (200 ± 10) mm over a flat boarded area which replaces the test specimen for the purposes of the calibration at the relevant pitch roof The calibration wind speed shall be (10 ± 0,5) m/s at the centre of the test specimen The spatial variation of the wind speed shall be not more ± 15 % over the effective testing area Wind speed shall be measured to a maximum inaccuracy of 0,5 m/s The turbulence intensity Iu in the oncoming wind shall be less than 10 % at each position The turbulence intensity Iu (%) is expressed as Iu =100σg/ ū, where σg and ū are the standard deviation of the turbulent fluctuation in the wind speed and mean wind speeds respectively, measured over a duration of not less than for this purpose Mean wind speed 𝑢= ∑𝑛 𝑖=1 𝑢𝑖 (A.1) 𝑛 Standard deviation � 𝜎𝑔 = � 𝑛 𝑖=1 (𝑢𝑖 −𝑢)2 𝑛−1 (A.2) where 𝑢𝑖 are individual wind speed measurements; n is the number of wind speed measurements A.7.4 Rain generation installation The installation shall be capable of supplying a stable rainfall rate (± %) as given in Table A.3 for the roof pitch under test The spatial variation shall be not more than ± 35 % over the effective testing area during a period of The rain droplet size shall be representative of natural rain, predominantly in the range of 0,6 mm to 2,5 mm diameter It has to be ensured that the falling rain droplets have the appropriate velocity when hitting the test specimen 21 BS EN 50583-2:2016 EN 50583-2:2016 (E) To calibrate the rain falling directly on the test specimen, replace the test specimen with a flat board which incorporates rainfall-measuring devices in its upper surface The measuring devices shall each be between 0,1 m² and 0,2 m² in plan area and arranged so that they not collect any run-off water during calibration The rain shall be measured to a maximum inaccuracy of % or 0,2 mm/h, whichever is larger Calibrate the uniformity of rain distribution for each roof pitch and each test A, B, C and D (see A.9) as appropriate A.7.5 Run-off water Run-off water, to simulate the rafter length of the roof above the position of the test specimen, shall be evenly distributed across the top of the test specimen with a maximum deviation of not more than 10 % over the width of the test specimen, by taking measurements at not less than positions uniformly distributed over the width of the test specimen The quantity of run-off water shall be measured to a maximum inaccuracy of % Precautions should be taken to avoid non-representative distribution of run-off water on the uppermost course of roof-covering elements which, for example, could cause premature leakage through their sidelaps NOTE As a precaution, the sidelaps in the uppermost course of roofing elements may be sealed A.7.6 Observation and measurement of leakage The pressure chamber shall be provided with: a) a transparent under-surface for clear visual observation of the nature and position of leakages which may appear on the underside of the test specimen during the test; b) an apparatus to continuously collect and measure the amount (by weight or by volume) of leakage water which may fall from the test specimen into the pressure chamber during the test To minimize surface tension, absorption and retention of water on the internal surfaces of the pressure chamber, the surfaces shall be smooth, non-absorbent and inclined at a vertical angle of not less than 10° from the horizontal towards the lower collecting apparatus during testing The degree of water penetration through the effective testing area shall be evaluated as: No moisture at the rear of the specimen Entering of fine spray Moisture at the rear of the specimen Rain drops or rain penetration at the rear of the specimen A.8 Test procedure A.8.1 General Carry out the test in an environment with a temperature of between °C and 35 °C with the test specimen installed in the apparatus at the specified roof pitch Seal the edges of the test specimen to prevent leakage of water or air into or out of the suction chamber Such seals shall not affect the headlaps and sidelaps of the unsealed areas of the test specimen Select and continuously apply the relevant wind speed, rain-fall rate, and amount of run-off water according to the conditions specified in A.8.2 The test specimen shall be surface dry before testing 22 BS EN 50583-2:2016 EN 50583-2:2016 (E) In the wind-driven rain sub-tests (A, B and C), measure initially the pressure difference with the suction chamber closed and adopt this pressure difference as the reference datum for subsequent pressure changes during the sub-test Then reduce the pressure in the box in steps of not less than 10 Pa and maintain each pressure step for ± 10 sec Measure the amount of leakage water (if any) at each pressure step, or continuously, up to the reference leakage rate NOTE The test can be continued to greater pressure differences to observe additional leakage rates In the deluge sub-test (D), apply the rainfall and run-off without wind (suction fan turned off) and with the suction chamber open to the atmosphere, for ± 10 sec Observe any leakage and measure the amount of leakage water Fine spray can enter through joints in certain types of discontinuously laid elements, producing small amounts of water on the test specimen or on the surface of the suction chamber Its occurrence shall be recorded NOTE Such fine spray may or may not be regarded as leakage depending on the performance requirements A.8.2 Test conditions A.8.2.1 General A set of tests shall consist of sub-tests B and D (and optionally sub-tests A and C), carried out with the following wind-rain combinations as defined in Table A.3 for appropriate climate zones: • Sub-test A: Low wind speed with severe rainfall rate; • Sub-test B: Low wind speed with high rainfall rate; • Sub-test C: Severe wind speed with low rainfall rate; • Sub-test D: Maximum rainfall rate with no wind (deluge) A.8.2.2 Wind speed modification for roof pitch To derive the wind speed over the test specimen a modification to the wind speed shall be applied to allow for the effect of roof pitch, by 𝑢𝑠 = 𝑢 × 𝑓 Values of f are given in Table A.2 𝑓 𝑢 us wind speed factor relating us and uf [-] wind speed approaching the roof [m/s] wind speed over test specimen [m/s] Table A.2 – Wind speed modification factor Roof pitch (degrees) 𝑓 15,0 0,85 17,5 0,81 20,0 0,80 25,0 0,76 30,0 0,71 35,0 0,67 40,0 0,60 45,0 0,54 f values for other intermediate roof pitches are obtained by interpolation A.8.2.3 Run-off water The run-off rate Rro (l/min) shall be calculated by the formula: Rro = Rt W L / 60 ……………… (A.3) where 23 BS EN 50583-2:2016 EN 50583-2:2016 (E) Rt is the rainfall on the roof surface, in mm/h; W is the effective width of the test specimen, in m; L is the simulated additional rafter length above the test specimen, in m Unless otherwise specified, L shall be not less than m Climate zone Table A.3 – Wind and rain test conditions Test conditions Sub-test Wind speed U [m/s] Northern Europe, coastal 24 Rainfall Rh [mm/h] A 110 B 13 60 C 25 D 225 Roof pitch α [] Wind speed on roof surface us [m/s] 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 4,3 ± 0,5 4,1 ± 0,5 4,0 ± 0,5 3,8 ± 0,5 3,6 ± 0,5 3,4 ± 0,5 3,0 ± 0,5 2,7 ± 0,5 11,1 ± 0,5 10,5 ± 0,5 10,4 ± 0,5 9,9 ± 0,5 9,2 ± 0,5 8,7 ± 0,5 7,8 ± 0,5 7,0 ± 0,5 21,3 ± 0,5 20,3 ± 0,5 20,0 ± 0,5 19,0 ± 0,5 17,8 ± 0,5 16,8 ± 0,5 15,0 ± 0,5 13,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 Rainfall on roof surface Rt [mm/h] (tolerance ± %) 124 126 127 129 130 129 128 126 85 89 92 99 104 109 113 116 13 14 15 17 19 20 22 23 217 215 211 204 195 184 172 159 BS EN 50583-2:2016 EN 50583-2:2016 (E) Table A.3 Climate zone Test conditions Sub-test Wind speed U [m/s] Central Europe Rainfall Rh [mm/h] A 200 B 10 130 C 15 D 300 Roof pitch α [] 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 Wind speed on roof surface us [m/s] 3,4 ± 0,5 3,2 ± 0,5 3,2 ± 0,5 3,0 ± 0,5 2,8 ± 0,5 2,7 ± 0,5 2,4 ± 0,5 2,2 ± 0,5 8,5 ± 0,5 8,1 ± 0,5 8,0 ± 0,5 7,6 ± 0,5 7,1 ± 0,5 6,7 ± 0,5 6,0 ± 0,5 5,4 ± 0,5 12,8 ± 0,5 12,2 ± 0,5 12,0 ± 0,5 11,4 ± 0,5 10,7 ± 0,5 10,1 ± 0,5 9,0 ± 0,5 8,1 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 Rainfall on roof surface Rt [mm/h] (tolerance ± %) 217 219 220 220 219 217 213 207 167 172 176 185 192 197 202 204 13 14 15 16 17 18 19 20 290 286 282 272 260 246 230 212 25 BS EN 50583-2:2016 EN 50583-2:2016 (E) Table A.3 Climate zone Test conditions Sub-test Wind speed U [m/s] Southern Europe NOTE Rainfall Rh [mm/h] A 248 B 166 C 20 D 415 Roof pitch α [] Wind speed on roof surface us [m/s] 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 15,0 17,5 20,0 25,0 30,0 35,0 40,0 45,0 1,7 ± 0,5 1,6 ± 0,5 1,6 ± 0,5 1,5 ± 0,5 1,4 ± 0,5 1,3 ± 0,5 1,2 ± 0,5 1,1 ± 0,5 6,8 ± 0,5 6,5 ± 0,5 6,4 ± 0,5 6,1 ± 0,5 5,7 ± 0,5 5,4 ± 0,5 4,8 ± 0,5 4,3 ± 0,5 17,0 ± 0,5 16,2 ± 0,5 16,0 ± 0,5 15,2 ± 0,5 14,2 ± 0,5 13,4 ± 0,5 12,0 ± 0,5 10,8 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 ± 0,5 Values of Rt in Table A.3 are calculated by Formula (4): R t = Rh (cos α + tan θ sin α) …… (4) where α is the roof pitch, with θ according to Formula (5): θ = tan -1 {u / (4,505 Rh 0.123 )} …… (5) Values of R t for intermediate roof pitches are obtained by interpolation 26 Rainfall on roof surface Rt [mm/h] (tolerance ± %) 254 253 252 248 243 235 226 215 201 206 210 217 222 226 228 229 11 12 13 14 16 17 18 19 401 396 390 376 359 340 318 293 BS EN 50583-2:2016 EN 50583-2:2016 (E) A.9 Evaluation and expression of test results During the test leakage of the test specimen shall be continuously observed from the underside of the test specimen, recording any fine spray, wetting on the underside, and leakage The amount of leakage water and the corresponding test conditions shall be recorded The description of leakage may be supplemented with diagrams and photographs The cases, in which leakage exceeding fine spray and wetting on the underside occur, are considered as being too severe for the application In any case, the reference leakage rate of (10 g/m²)/5 shall not be surpassed A.10 Test report The test report shall contain the following: a Reference to this technical standard for BIPV modules EN 50583 and application category A; b Identification of the BIPV roof covering: Name, manufacturer or supplier of the BIPV modules and mounting system; Short description of the mounting setup and interconnection of the BIPV modules; Serial numbers of the BIPV modules and if available of the mounting type; Date and form in which the BIPV modules and mounting system arrived at the laboratory, including fixing devices, if any; Handling, storage and conditioning of the elements before testing c Test procedure: Turbulence intensity of the apparatus; Calibration of the fan system, rain generating and run-off water devices; Method of preparation and laying of the test specimen, including dimensions, and sealing of the edges; Sub-Test conditions B and D (and optionally A and C) and the climate zone or appropriately derived wind-rain conditions; Roof pitch; Any deviation from this standard and any incidents which may have influenced the results; Date of test; Name and signature of technician responsible for the test d Results: Description of the continuous visual observation of the underside of the test specimens for the wind-rain sub-tests A, B, C and D as appropriate; Description of the water penetration through the effective testing area, evaluated as: i) No moisture at the rear of the modules; ii) Entering of fine spray; iii) Moisture at the rear of the modules; iv) Rain drops or rain penetration at the rear of the modules; The measured amount of accumulated water at the rear of the modules shall be stated for each test sequence The suction pressure applied to the underside of the test specimen at which the reference leakage rate occurs; 27 BS EN 50583-2:2016 EN 50583-2:2016 (E) 28 Increments of underside pressure and the corresponding leakage rate; Amount of leakage water measured in the deluge rain for sub-test D; Where appropriate, the comparison of the performance of the product in the test specimen with the performance of a reference product in another test specimen using the same apparatus BS EN 50583-2:2016 EN 50583-2:2016 (E) Bibliography CEN/TR 15601:2012, Hygrothermal performance of buildings — Resistance to wind-driven rain of roof coverings with discontinuously laid small elements — Test method EN 82079-1, Preparation of instructions for use — Structuring, content and presentation — Part 1: General principles and detailed requirements 29 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body 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